Mystic Penitent

Threshold — This creature has flying as long as there are seven or more cards in your graveyard.

Flying

Threshold — As long as there are seven or more cards in your graveyard, this creature gets +1/+1 and has protection from black.

Delirium — This creature has flying as long as there are four or more card types among cards in your graveyard.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

As long as you have 30 or more life, this creature gets +5/+5 and has flying.

Enchant creature

Enchanted creature can't attack.

Threshold — Enchanted creature can't block as long as there are seven or more cards in your graveyard.

Survival — At the beginning of your second main phase, if this creature is tapped, exile up to one target card from a graveyard.

As long as there are three or more cards exiled with this creature, it gets +3/+3 and has hexproof. (It can't be the target of spells or abilities your opponents control.)